Just got the same message on my cell, called back from a landline and got an individual. Asked who he was speaking with, when I countered with who am I speaking with, he hung up.
A person from this number identifies themselves as calling from the U.S. Treasury. They even give you a case number. They tell you that you are going to be arrested. DON'T BELIEVE A WORD THEY SAY. THEY ARE BOGUS PEOPLE with no conscience. Horrible people who scare people.
Obvious scam. Unfortunately, I have to get calls from my clients about these calls. This takes time out of my day, it scares my clients, and I have to keep reassuring them it's a scam. I always get the number and dial it using *67. After about 100 calls to them, they usually stop answering.
Same thing got a call from the above #. I didn't answer went to voicemail and when I got around to the voicemail they stated a federal offense, ignoring would lead to prison and good luck!